Iron, boron, carbon, and copper alloy.



STATES PAENT @FFKQE.

EDWARD ll). GLEASON, OF NEW YORK, N. Y., ASSIGNOR, BY ASSIGNMENTS, 1'0

NEU-METALS AND PROCESS COMPANY, OF LONG ISLAND CITY, 1\TEW YORK, A 001R- PORATION OF NEW YQBK.

mom, nonon', cannon, AND corrnn ALLOY,

No Drawing.

To all whom it may concern Be it known that I, EDWARD D. GLEASON, of Brooklyn, in the county of Kings, city and State of New York, have invented a certain new and useful Improvement in Iron, Boron, Carbon, and Copper Alloys, whereof the following is a specification.

It is the object of my invention to provide an alloy that is practically non-corrosive, and which, though hard and tough, may be rolled to sheet form or readily machined without being annealed.

Heretofore it has been assumed, as the result of experience, that copper will not alloy with iron unless the latter be pure. Therefore, as the iron which I employ contains carbon, it is to be understood that the capacity of the-copper to alloy therewith is dueto the presence of boron.

' In carrying out my process I prefer to first incorporate the boron in the copper, preferably by subjecting the copper to the action of boron fiuorid while the co per is molten, which results in the deposit 0 boron in the graphitoidal state in the copper when the latter cools. In forming my improved alloy I employ such boron copper in which boron is in excess, viz., in greater quantity than will combine with the copper and as the boron associates .with iron as readily as silicon, regardless of the carbon content of the iron, the copper is thereby caused to alloy with the iron and carbon, forming a homogeneous, mixture. .For instance, by taking 80 parts Bessemer scrap and fusing it in a Hawley-Schwartz furnace and adding 20 parts of copper containing boron in excess, I produce an alloy which may be cast in ordinary sand molds, forming castings which are homogeneous and easily machined. However, it is to be understood that other proportions of low carbon'steel, copper and boron may be employed without Specification of Letters latent.

Patented Jan. 26, 31915.

Application filed December 31, 1912. Serial No. 739,454.

departing from the scope of my invention. Therefore, I do not desire to limit myself to the precise proportions or method of procedure herein set forth.

' I claim 1. An alloy containing iron, boron and copper;. including approximately 80 per cent. of iron. I

2. An alloy containing iron, copper and boron, the principal ingredient of which is iron.

3. An alloy containing iron, boron, and copper; includin approximately -80 per cent. of iron, retaining carbon derived from the carbon primarily present in the iron.

4. An alloy containing iron, copper and boron the principal ingredient of which is iron, retaining carbon derived from the carbon primarily present in the iron.

5. An alloy containing iron and co pen including boron material in excess 0 the quantity that will combine with the copper.

6. The process of forming an alloy containing iron, co per and boron; which consists in fusing essemer scrap with copper containing boron in excess of the quantity that will combine with the copper.

7. The step in the process of forming an alloy containing iron, copper and boron which consists in adding to the iron copper includin boron in excess of the quantity that willcombine with the co per.

8. The step in the process of orming an alloy containing iron, copper and boron i which consists in adding to the iron copper including boron in the graphitoidal state.

In testimony whereof, I have hereunto signed my name at Philadelphia, Pennsylvania, this thirtieth day of December, 1912.

- 4 EDWARD D. GLEASON.

Witnesses:

ANNA IBRAELVITZ,

E'rrmr. M. IMsoHwnInER. 

